Propeller attachment for vehicles



W. E. KEliYl PROPELLER ATTACHMENT FOR VEHICLES.

APPLICAHON FILED AUG 6 1921 pa Lgfi, a??? Patenfied Aug. 15, m2

INVENTORV stares? PAT T orricia.

wI L AIvrE. KELLY, or CLEV LAND.oHIoff PBOPELLER ATTACHMENT FOB/ VEHICLES.

Speeificationof Letters'Patent. 1 3139 361 Aug- 15, 1 922 Application filed August 6, 1921. Serial No. 490,399.

To all whom it may concern:

Belt known that 1, WILLIAM E. KELLY, a citizen oi the United States, residing at Ulcvelanchcountyof Cuyahoga, and State of Ohio, have invented a new and useful Promade up as one unit and readily applied to either'a new or an existing vehicle, is ad pustable to suit the strengthor the convenience, or both. of the operator, and can be folded into compact form for shipment, My invention is exemplified in the following description and is illustrated: in the ac companying drawing in which Fig. 1 is a general perspective view of. a .vehiclegwith the propeller attachment applied: Flg. 21s

a section on line 2 of Fig. 1; Fig. 3is, a

section on line 3 of Fig. 1; Fig. 4 is a modi- I V V 1 shown 1111* 1g. 4 wherein the operat ng lever;

fication of the attachment; Fig. 5 is a gen eral perspective view of the attachment of Fig. 1 showing one manner of folding the same for shipment; and Fig. 6 is a partial plan view showing a method oi connection to permitfreedom of action of the push bar. oimilar referencecharacters refer to simi lar parts throughout the views.

The propeller attachment shown in Flg. 1 has the fulcrum blocks 10 and 11, both alike. which have the recess 12 to clear the nuts 32, a central opening for the pivot bolts 1? and 14. and the screws 15 by which. the blocks 10 and 11 are fastened to the vehicle The operating lever 16 is fulcrumed on the bolt 13, extends upwardly, and has an opening for the pivot bolt 17.

The intermediate lever 18 is fulcrumed on the bolt 14 as shown in Fig. 2 which figure also applies to the bolt 13, extends upwardly, and has a series of openlngs 30 for the pivot bolts 19 and 20.

The link 21 is located on the inside of the levers 16 and 18, has a series of openings 31 for the bolt 20, and is held in operative for manct the lever 18 and is held in operative con- I nection therewith by the bolt 19. I

The stops -23'are provided to prevent the push. bar' .22 from moving'beyond'a. vertical plane either forward orbackward as the vehicle A is'being pr opelled.

One end of the spring 24 is secured to the push bar 22 near the bolt 19. while the other end thereof is secured to. the lever 18 near the bolt-20.. This spring is secured as stated so that the push bar 22 maybe, I

swung around on the bolt 19 for eltl16l, f 01' ward propulsion of thevehicle as shown in full lines, or for backward propulsion as shown in dottedlines. This-spring isadpush bar to, the ground, but .may be omitted since the push bar may be held to thejground li y its own weight.

The series of openlngsin the lever 18 v well as the link-21 areprovided to permit adjustment of the operating lever-as well vantageous to hold the "lower end of the as the pushbar to suit the convenience or.

strength of the operator. 6

A more simple propeller attachment is 16 is fulcrurned on the block 10 as in Fig. 1, but the push bar 22 is operatively connected dir'eotlyto the lever 16 by the bolt 25. In this instance, the lever 16 has a series of openings 26 to provide adjustment.

' This apparatus can readily be folded into The operation of the attachment shown in Fig. 1 is as follows. The attachment being secured to the vehicle A by the screws 15 and the several elements thereof are substantially in the positions shown in Fig. 1. In order to propel the vehicle forward in the direction of the arrow thereon, the

upper end of the lever 16 is moved backward in the direction of the arrow'thereon.

This movement causes the link 21 to also move in a backward direction and also causes the upper end of the lever 18 to also move in a backward direction. The lower end of the push bar 22 being in contact with the ground as shown and the above movement being continued, the vehicle A will move forward in the direction of the arin dotted lines in Fig. 1; backward propulsion is then accomplished by the same operation as prev ously set forth but in opposite direction.

In order to render this attachment adaptable for different speeds of the vehicle, or

for different strength of operators, or for convenience of the operator as the inclination of the operating lever for instance, the leverage or the inclination of the operat ing lever or the push bar or both may be changed by inserting either the bolt 19 or the bolt 20 in one of the respective adjacent openings in these members.

In such an arrangement,the operation of this device is very similar to the rowing of a boat.

Various modifications are possible within the spirit and intent of this invention; therefore, without limiting myself to the precise construction shown and described.

I claim:

1. An apparatus of the character described, comprising a fulcrum block adapted to be secured to a vehicle, an operating lever fulcrumed to said fulcrum block, a push bar operatively connected to said operating lever and the lower end thereof adapted to engage the ground, anda spring operatively connected to said "push bar to hold the lower end thereof to the ground.

2. An apparatus of the character described,-comprising a fulcrum block adapt edto be secured to a vehicle, an operating lever fulcrumed to said fulcrum block, a second fulcrum block adapted to be secured to said vehicle, an intermediate lever fulcrumed on said second fulcrum block, a link operatively connecting said operating lever and said intermediate lever, a push bar fulcrumed on said intermediate lever and the lower end thereof adapted to engage the ground, and a spring adapted to hold the lower, end of said push bar to the ground.

3. As a new article of manufacture, a propelling attachment for vehicles, comprising fulcrum blocks adapted to be attached to a vehicle, an operating lever fulcruined to one of said fulcrum blocks, an inter mediate lever fulcrumed to the other of said fulcrum blocks, a link operatively connecting said operating lever and said intermediate lever, a push bar fulcrumed to said intermediate lever, and all of said members arranged to fold into compact form when not in use or for shipment.

WM. E, KELLY. 

